An intelligent detection approach for end-of-life power battery shell bolts

IF 2.1 4区 工程技术 Advances in Mechanical Engineering Pub Date : 2024-04-20 DOI:10.1177/16878132241244889
Jie Li, Dantong Chen, Jiahui Si
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Abstract

With the rapid growth of the new energy vehicle industry, the number of end-of-life power batteries, which serve as the technological core, is also increasing significantly. Unfortunately, this rise in retired power batteries has led to severe environmental pollution and resource wastage. The detection of shell bolts in power batteries has thus become a crucial step in the recycling and disassembly process. To address this issue, this research proposes a detection method for end-of-life power battery shell bolts. Based on market analysis, the target bolt for the retired power battery shell was identified. The bolt images were collected and preprocessed to create a custom dataset on the experimental platform. Four popular object detection algorithms were compared, and the YOLOv8 model is selected to improve with EMA module. The improved YOLOv8 model achieves 98.9% for mAP_0.5, which increases more than 2 percentage points. Based on the repeatability of bolt recognition, this detection method can be used for the identification of bolts in other battery shells, providing a theoretical foundation for promoting the robotic disassembly of battery shells.
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报废动力电池外壳螺栓智能检测方法
随着新能源汽车产业的快速发展,作为技术核心的动力电池的报废数量也在大幅增加。遗憾的是,报废动力电池的增加造成了严重的环境污染和资源浪费。因此,检测动力电池的外壳螺栓已成为回收和拆卸过程中的关键步骤。针对这一问题,本研究提出了一种报废动力电池外壳螺栓的检测方法。根据市场分析,确定了报废动力电池外壳的目标螺栓。收集螺栓图像并进行预处理后,在实验平台上创建了一个自定义数据集。比较了四种流行的物体检测算法,并选择 YOLOv8 模型与 EMA 模块进行改进。改进后的 YOLOv8 模型对 mAP_0.5 的识别率达到 98.9%,提高了 2 个百分点以上。基于螺栓识别的可重复性,该检测方法可用于其他电池外壳的螺栓识别,为推动电池外壳的机器人拆卸提供了理论基础。
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来源期刊
Advances in Mechanical Engineering
Advances in Mechanical Engineering Engineering-Mechanical Engineering
自引率
4.80%
发文量
353
期刊介绍: Advances in Mechanical Engineering (AIME) is a JCR Ranked, peer-reviewed, open access journal which publishes a wide range of original research and review articles. The journal Editorial Board welcomes manuscripts in both fundamental and applied research areas, and encourages submissions which contribute novel and innovative insights to the field of mechanical engineering
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